题解 | #字符个数统计#
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
import sys
for line in sys.stdin:
a = line.split()[0]
dic = {}
for i in range(len(a)):
dic[a[i]] = 0
print(len(dic))
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
import sys
for line in sys.stdin:
a = line.split()[0]
dic = {}
for i in range(len(a)):
dic[a[i]] = 0
print(len(dic))
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